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Siemens  Standard application AHU  CE1P3977en_02 
Building Technologies  Detail pages: Inputs and outputs  01.02.2010 
6  Detail pages: Inputs and outputs   
6.1  General 
 
This section describes all the detail pages for analog and digital inputs and outputs 
as well as multistate (=digital modulating) outputs. 
Most of the listed and briefly outlines values are parameters are designed exclu-
sively for experts. 
Possible reliability states (messages) for the base controller and the extension 
modules may differ.  
Detail pages can only be read/written at the following access levels: 
•  Read: Levels 6, 4 and 2, Special Settings with levels 4 and 2 only. 
•  Write: Levels 4 and 2. 
 
Changes to parameters and settings may have a massive impact on plant opera-
tion and safety. 
 
 
6.2  Analog outputs 
6.2.1  General 
 
The details page for analog outputs can be reached multiple ways, including: 
•  Main Index > Unit > Outputs > Analog outputs > Plant Element 
or 
•  Main Index > Unit > Element Control > Analog Element > Output Signal 
 
•  Main Index > Unit > Outputs > Analog outputs > Exh fan outp signal 
or 
•  Main Index > Unit > Fan Control > Exhaust fan > Output signal 
 
 
Parameter  Range  Function 
Manual operation  0…100 [%]  Manual intervention on the output. The output goes 
directly to manual operation when entering a value 
(for 0 as well). Is not automatically reset. An alarm 
can be triggered after a set period when the manual 
alarm function is enabled. 
Manual operation  –  NULL 
 
 
–  Active 
–  Auto: The program controls the output. Reset a 
manual intervention to auto mode. 
–  Displays a manual intervention. The value en-
tered above (0...100 %) controls the output. 
Present Value  0…100 [%]  Present value for output. 
Note 
Access level 
Caution 
Access 
Example 
Parameter 
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 95